Pay vs Performance Disclosure - USD ($)

12 Months Ended

Dec. 31, 2023

Dec. 31, 2022

Dec. 31, 2021

Dec. 31, 2020

Pay vs Performance Disclosure

Pay vs Performance Disclosure, Table

										Value of Initial $100
										Investment Based on
	Summary				Average Summary		Average				Peer Group
	Compensation		Compensation		Compensation		Compensation		Total		Total
	Table Total for		Actually Paid		Table Total for		Actually Paid to		Shareholder		Shareholder		Net Income (loss)		Adjusted EBITDA (5)
Year	PEO (1)		to PEO (2) (3)		Non-PEO NEOs (1)		Non-PEO NEOs (2) (3)		Return		Return (4)		(in thousands)		(in thousands)
2023	$	40,058	$	43,533,121	$	17,716,938	$	28,506,155	$	352.52	$	139.14	$	174,227	$	329,335
2022		33,203		13,687,307		4,305,869		2,091,584		226.43		118.69		147,139		232,313
2021		33,115		253,610,579		5,634,227		30,194,861		214.25		143.55		(60,018)		178,112
2020		2,559,392		278,740,704		1,914,694		31,929,509		167.21		117.10		(1,724)		155,808

⁽¹⁾ For each year presented, Patrick W. Smith was our PEO; reflects amounts reported in the Summary Compensation Table for the respective years. Our non-PEO NEOs for 2023 were Ms. Bagley and Messrs. Isner and Kunins. Our non-PEO NEOs for 2022 were Ms. Bagley and Messrs. Isner, Kunins, Larson, Ahsan and Zito. Our non-PEO NEOs for 2021 and 2020 were Messrs. Larson, Ahsan, Isner and Kunins. Average compensation for the non-PEO NEOs reflects amounts reported in the Summary Compensation Table for the respective years.

⁽²⁾ Amounts shown for compensation actually paid (“CAP”) are computed in accordance with Item 402(v) of Regulation S-K under the Exchange Act and do not reflect the actual amount of compensation earned by or paid to the NEOs during the applicable year. These amounts reflect total compensation as reported in the Summary Compensation Table with certain adjustments as required by Item 402(v) of Regulation S-K as described in Note (3) below.

⁽³⁾ CAP reflects the exclusions and inclusions of equity awards for the PEO and the other NEOs as set forth below and calculated in accordance with ASC Topic 718. The valuation methodologies and assumptions used to calculate CAP are based on the grant date fair value of these awards as disclosed in the Company’s consolidated financial statements filed with the SEC on Form 10-K for each of the years reflected in the table below:

Summary Compensation Table Total to CAP Reconciliation for the PEO and the other NEOs:

	Calculation for PEO
Calculation (a) of Compensation Actually Paid	Year 2020		Year 2021		Year 2022		Year 2023
Summary Compensation Table Total	$	2,559,392	$	33,115	$	33,203	$	40,058
Less grant date fair value of stock and option awards (b)		(2,531,425)		—		—		—
Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year		405,161		227,074,553		—		43,493,063
Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years		278,307,576		26,502,911		13,654,104		—
Compensation Actually Paid	$	278,740,704	$	253,610,579	$	13,687,307	$	43,533,121

	Calculation for Average of Non-PEOs
Calculation (a) of Compensation Actually Paid	Year 2020		Year 2021		Year 2022		Year 2023
Summary Compensation Table Total		1,914,694	$	5,634,227	$	4,305,869	$	17,716,938
Less grant date fair value of stock and option awards		(1,156,333)		(4,414,658)		(3,502,709)		(16,456,252)
Add year-end fair value of awards granted during the fiscal year that are outstanding and unvested as of the end of the fiscal year		469,229		3,515,309		4,596,869		18,641,953
Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year		220,174		21,247,901		51,093		5,910,764
Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years		30,481,745		4,212,082		(3,359,538)		2,692,752
Compensation Actually Paid	$	31,929,509	$	30,194,861	$	2,091,584	$	28,506,155

(a) For the PEO and the other NEOs, for each covered year, fair value of awards that are granted and vest in the same covered fiscal year equals $0, and fair value of awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the covered fiscal year equals $0.

(b) The amount shown for 2020 represents the total stock compensation expense for modified shares related to a performance share unit (“PSU”) award for Mr. Smith.

⁽⁴⁾ Total Shareholder Return (“TSR”) shown in this table utilizes the Russell Midcap Index that we use in the stock performance graph required by Item 201(e) of Regulation S-K included in the Company’s consolidated financial statements filed with the SEC on Form 10-K for each of the years reflected in the table above. The comparison assumes $100 was invested for the period starting December 31, 2020 through December 31 of the applicable fiscal year in each of the Company’s common stock and the Russell Midcap Index. All dollar values assume reinvestment of the pre-tax value of dividends paid by companies included in the Russell Midcap Index. The historical stock price performance of our common stock shown is not necessarily indicative of future stock price performance.

⁽⁵⁾ Pursuant to Item 402(v) of Regulation S-K under the Exchange Act, we determined Adjusted EBITDA to be the most important financial performance measure used to link Company performance to CAP for our PEO and our other NEOs in 2023. This performance measure may not have been the most important financial performance measure for years 2022 and 2021 and we may determine a different financial performance measure to be the most important such measure in future years. Adjusted EBITDA is defined as earnings before interest expense, investment interest income, income taxes, depreciation, amortization, non-cash stock-based compensation expense, fair value adjustments to strategic investments and marketable securities, transaction costs related to acquisitions and investments, and other unusual, non-recurring pre-tax items that are not considered representative of our underlying operating performance. For a reconciliation of Adjusted EBITDA to earnings, see “Reconciliation to Non-GAAP Measures.”

Company Selected Measure Name

Adjusted EBITDA

Named Executive Officers, Footnote

										Value of Initial $100
										Investment Based on
	Summary				Average Summary		Average				Peer Group
	Compensation		Compensation		Compensation		Compensation		Total		Total
	Table Total for		Actually Paid		Table Total for		Actually Paid to		Shareholder		Shareholder		Net Income (loss)		Adjusted EBITDA (5)
Year	PEO (1)		to PEO (2) (3)		Non-PEO NEOs (1)		Non-PEO NEOs (2) (3)		Return		Return (4)		(in thousands)		(in thousands)
2023	$	40,058	$	43,533,121	$	17,716,938	$	28,506,155	$	352.52	$	139.14	$	174,227	$	329,335
2022		33,203		13,687,307		4,305,869		2,091,584		226.43		118.69		147,139		232,313
2021		33,115		253,610,579		5,634,227		30,194,861		214.25		143.55		(60,018)		178,112
2020		2,559,392		278,740,704		1,914,694		31,929,509		167.21		117.10		(1,724)		155,808

⁽¹⁾ For each year presented, Patrick W. Smith was our PEO; reflects amounts reported in the Summary Compensation Table for the respective years. Our non-PEO NEOs for 2023 were Ms. Bagley and Messrs. Isner and Kunins. Our non-PEO NEOs for 2022 were Ms. Bagley and Messrs. Isner, Kunins, Larson, Ahsan and Zito. Our non-PEO NEOs for 2021 and 2020 were Messrs. Larson, Ahsan, Isner and Kunins. Average compensation for the non-PEO NEOs reflects amounts reported in the Summary Compensation Table for the respective years.

Peer Group Issuers, Footnote

⁽⁴⁾ Total Shareholder Return (“TSR”) shown in this table utilizes the Russell Midcap Index that we use in the stock performance graph required by Item 201(e) of Regulation S-K included in the Company’s consolidated financial statements filed with the SEC on Form 10-K for each of the years reflected in the table above. The comparison assumes $100 was invested for the period starting December 31, 2020 through December 31 of the applicable fiscal year in each of the Company’s common stock and the Russell Midcap Index. All dollar values assume reinvestment of the pre-tax value of dividends paid by companies included in the Russell Midcap Index. The historical stock price performance of our common stock shown is not necessarily indicative of future stock price performance.

PEO Total Compensation Amount

$ 40,058

$ 33,203

$ 33,115

$ 2,559,392

PEO Actually Paid Compensation Amount

$ 43,533,121

13,687,307

253,610,579

278,740,704

Adjustment To PEO Compensation, Footnote

⁽³⁾ CAP reflects the exclusions and inclusions of equity awards for the PEO and the other NEOs as set forth below and calculated in accordance with ASC Topic 718. The valuation methodologies and assumptions used to calculate CAP are based on the grant date fair value of these awards as disclosed in the Company’s consolidated financial statements filed with the SEC on Form 10-K for each of the years reflected in the table below:

Summary Compensation Table Total to CAP Reconciliation for the PEO and the other NEOs:

	Calculation for PEO
Calculation (a) of Compensation Actually Paid	Year 2020		Year 2021		Year 2022		Year 2023
Summary Compensation Table Total	$	2,559,392	$	33,115	$	33,203	$	40,058
Less grant date fair value of stock and option awards (b)		(2,531,425)		—		—		—
Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year		405,161		227,074,553		—		43,493,063
Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years		278,307,576		26,502,911		13,654,104		—
Compensation Actually Paid	$	278,740,704	$	253,610,579	$	13,687,307	$	43,533,121

	Calculation for Average of Non-PEOs
Calculation (a) of Compensation Actually Paid	Year 2020		Year 2021		Year 2022		Year 2023
Summary Compensation Table Total		1,914,694	$	5,634,227	$	4,305,869	$	17,716,938
Less grant date fair value of stock and option awards		(1,156,333)		(4,414,658)		(3,502,709)		(16,456,252)
Add year-end fair value of awards granted during the fiscal year that are outstanding and unvested as of the end of the fiscal year		469,229		3,515,309		4,596,869		18,641,953
Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year		220,174		21,247,901		51,093		5,910,764
Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years		30,481,745		4,212,082		(3,359,538)		2,692,752
Compensation Actually Paid	$	31,929,509	$	30,194,861	$	2,091,584	$	28,506,155

(a) For the PEO and the other NEOs, for each covered year, fair value of awards that are granted and vest in the same covered fiscal year equals $0, and fair value of awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the covered fiscal year equals $0.

(b) The amount shown for 2020 represents the total stock compensation expense for modified shares related to a performance share unit (“PSU”) award for Mr. Smith.

Non-PEO NEO Average Total Compensation Amount

$ 17,716,938

4,305,869

5,634,227

1,914,694

Non-PEO NEO Average Compensation Actually Paid Amount

$ 28,506,155

2,091,584

30,194,861

31,929,509

Adjustment to Non-PEO NEO Compensation Footnote

⁽³⁾ CAP reflects the exclusions and inclusions of equity awards for the PEO and the other NEOs as set forth below and calculated in accordance with ASC Topic 718. The valuation methodologies and assumptions used to calculate CAP are based on the grant date fair value of these awards as disclosed in the Company’s consolidated financial statements filed with the SEC on Form 10-K for each of the years reflected in the table below:

Summary Compensation Table Total to CAP Reconciliation for the PEO and the other NEOs:

	Calculation for Average of Non-PEOs
Calculation (a) of Compensation Actually Paid	Year 2020		Year 2021		Year 2022		Year 2023
Summary Compensation Table Total		1,914,694	$	5,634,227	$	4,305,869	$	17,716,938
Less grant date fair value of stock and option awards		(1,156,333)		(4,414,658)		(3,502,709)		(16,456,252)
Add year-end fair value of awards granted during the fiscal year that are outstanding and unvested as of the end of the fiscal year		469,229		3,515,309		4,596,869		18,641,953
Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year		220,174		21,247,901		51,093		5,910,764
Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years		30,481,745		4,212,082		(3,359,538)		2,692,752
Compensation Actually Paid	$	31,929,509	$	30,194,861	$	2,091,584	$	28,506,155

(a) For the PEO and the other NEOs, for each covered year, fair value of awards that are granted and vest in the same covered fiscal year equals $0, and fair value of awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the covered fiscal year equals $0.

(b) The amount shown for 2020 represents the total stock compensation expense for modified shares related to a performance share unit (“PSU”) award for Mr. Smith.

Compensation Actually Paid vs. Total Shareholder Return

Compensation Actually Paid vs. Net Income

Compensation Actually Paid vs. Company Selected Measure

Total Shareholder Return Vs Peer Group

Tabular List, Table

Set forth below is a list of the three most important financial performance measures used to link executive compensation actually paid to our NEOs during 2023 to Company performance:

● Adjusted EBITDA;

● Revenue; and

● Company stock price.

Total Shareholder Return Amount

$ 352.52

226.43

214.25

167.21

Peer Group Total Shareholder Return Amount

139.14

118.69

143.55

117.10

Net Income (Loss)

$ 174,227,000

$ 147,139,000

$ (60,018,000)

$ (1,724,000)

Company Selected Measure Amount

329,335,000

232,313,000

178,112,000

155,808,000

PEO Name

Patrick W. Smith

Measure:: 1

Pay vs Performance Disclosure

Name

Adjusted EBITDA

Non-GAAP Measure Description

⁽⁵⁾ Pursuant to Item 402(v) of Regulation S-K under the Exchange Act, we determined Adjusted EBITDA to be the most important financial performance measure used to link Company performance to CAP for our PEO and our other NEOs in 2023. This performance measure may not have been the most important financial performance measure for years 2022 and 2021 and we may determine a different financial performance measure to be the most important such measure in future years. Adjusted EBITDA is defined as earnings before interest expense, investment interest income, income taxes, depreciation, amortization, non-cash stock-based compensation expense, fair value adjustments to strategic investments and marketable securities, transaction costs related to acquisitions and investments, and other unusual, non-recurring pre-tax items that are not considered representative of our underlying operating performance. For a reconciliation of Adjusted EBITDA to earnings, see “Reconciliation to Non-GAAP Measures.”

Measure:: 2

Pay vs Performance Disclosure

Name

Revenue

Measure:: 3

Pay vs Performance Disclosure

Name

Company stock price

Fair value of awards that are granted and vest in the same covered fiscal year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 0

$ 0

$ 0

$ 0

Fair value of awards granted in prior years that failed to meet the applicable vesting conditions

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

0

0

0

PEO | Less grant date fair value of stock and option awards

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(2,531,425)

PEO | Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

13,654,104

26,502,911

278,307,576

PEO | Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

43,493,063

227,074,553

405,161

Non-PEO NEO | Less grant date fair value of stock and option awards

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(16,456,252)

(3,502,709)

(4,414,658)

(1,156,333)

Non-PEO NEO | Add year-end fair value of awards granted during the fiscal year that are outstanding and unvested as of the end of the fiscal year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

18,641,953

4,596,869

3,515,309

469,229

Non-PEO NEO | Add change in fair value (whether positive or negative) as of fiscal year-end for unvested and outstanding awards or forfeited awards granted in prior fiscal years

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

2,692,752

(3,359,538)

4,212,082

30,481,745

Non-PEO NEO | Add change in fair value (whether positive or negative) as of vesting date of awards granted in prior fiscal years for which all applicable vesting conditions were satisfied during the fiscal year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 5,910,764

$ 51,093

$ 21,247,901

$ 220,174